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A comment on Why can’t I go faster than the speed of light?. Parent comment
What actually matters is who travels the longest World Line a.k.a. the longest path in 4-d spacetime https://en.wikipedia.org/wiki/World_line . That is all.
A person on a non-curved geodesic spacetime path ages more quickly than a person on a curved non-geodesic spacetime path
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What actually matters is who travels the longest World Line a.k.a. the longest path in 4-d spacetime https://en.wikipedia.org/wiki/World_line . That is all.
A person on a non-curved geodesic spacetime path ages more quickly than a person on a curved non-geodesic spacetime path